Báo cáo khoa học: " Influenza virus antigenic variation, host antibody production and new approach to control epidemics" ppsx

... purposes)Virology JournalOpen AccessReview Influenza virus antigenic variation, host antibody production and new approach to control epidemicsJiezhong Chen*1 and Yi-Mo Deng2Address: 1John Curtin ... clinical outcome of influenza dependson both the influenza virus and the host defence. Recentstudies have furthered our understanding about virus antigenic variation to escape the host immune system.Recent ... system.Recent advances, particularly, in rapid production ofhuman antibodies to influenza viruses will help develop new medical countermeasures to control influenza epi-demics.Competing interestsThe...

Tài liệu Báo cáo khoa học: Identiﬁcation of ATP-NADH kinase isozymes and their contribution to supply of NADP(H) in Saccharomyces cerevisiae docx

... cell on SG solid medium and on and in solid and liquid media lacking arginine (Fig. 5 and Table 6),thereby supporting the partial contribution of Utr1p and Yef1p to mitochondrial functions (Fig. ... and WT cells carrying each geneon a high-copy vector or high-copy vectoralone were treated as in Fig. 4A and spottedon SD solid media (glucose) with (control) and without (–Arg) arginine and ... single,double and triple mutants, which was unexpectedly found to be viable, forUTR1, YEF1 and POS5 demonstrated the critical contribution of Pos5p to mitochondrial function and survival at 37 °C and...

Tài liệu Báo cáo khoa học: "Organizing Encyclopedic Knowledge based on the Web and its Application to Question Answering" ppt

... question,random choice can be performed to improve the cov-erage to 100%. Thus, for each knowledge resource wecompared cases without/with random choice, whichare denoted “w/o Random” and “w/ Random” ... related to how and why, so as to enhance Web-based natural language understanding.AcknowledgmentsThe authors would like to thank NOVA, Inc. for theirsupport with the Nova dictionary and Katunobu ... entries to esti-mate P (t|c) and P (t), which are relative frequenciesof t in c and all the domains, respectively. We usedthe ChaSen morphological analyzer (Matsumoto et al.,1997) to extract...

Báo cáo khoa học: Binding of the volatile general anesthetics halothane and isoﬂurane to a mammalian b-barrel protein doc

... (bandwidth 2 nm) and emissionspectra (bandwidth 4 nm) recorded with peaks at 339 nm.The quartz cell had a pathlength of 10 mm and a Teﬂon stop-per. The temperature of the cell holder was controlled ... bind to a-helical proteins such as bovine serumalbumin [8–10] and the synthetic four-a-helix bundles[4,6,7,11,12]. Helical proteins are known to be able to bind a variety of ligands due to their ... dynamics and global protein stability. Anesthesiology 90, 235–245.32 Xu Y, Seto T, Tang P & Firestone L (2000) NMRstudy of volatile anesthetic binding to nicotinic acetyl-choline receptors....

Báo cáo khoa học: "Question Answering as Question-Biased Term Extraction: A New Approach toward Multilingual QA" doc

... clas-siﬁed into question types without using them in thetraining phase. The results of automatic evaluationof complete matching are in Top5 (T5), and MRR and partial matching are in Top5 (T5’) and MRR’.It ... DiscussionOur approach needs no question type system, and itstill achieved 0.36 in MRR and 0.47 in Top5. Thisperformance is comparable to the results of SAIQA-II (Sasaki et al., 2004) (MRR=0.4, Top5=0.55)whose ... lower-bound and upper-bound of the performances. Inter-estingly, the manual evaluation results of MRR and Top5 are nearly equal to the average between exact and partial evaluation. To conﬁrm that...

Báo cáo khoa học: Differential susceptibility of Plasmodium falciparum versus yeast and mammalian enolases to dissociation into active monomers doc

... 19.3% and ran-dom 29.9% for the dimeric form, and helix 31.5%,beta 18.3%, turn 18.4% and random 31.8% for themonomeric form. Thus, it appears that dissociation ofdimers to form monomers lead to ... monomers. Mim and MpHdifferin activity and stability from the dimer and Mnt.MpHis rapidly con-verted into Mnton raising of the pH, whereas Mimis slow to con-vert to Mnt, a form ... bound to one and two Mg(II) ions exhibits both types of hydrogen bond. The subunit bound to one Mg(II) ion has a hydrogen bond between His189 and Arg14, and the other subunit, which is bound to...

Báo cáo khoa học: Aromatic amino-acid residues at the active and peripheral anionic sites control the binding of E2020 (AriceptÒ) to cholinesterases doc

... such as Phe295(288)andPhe297(290), and theperipheral anionic site such as Asp74(72), Tyr72(70),Tyr124(121), and Trp286(279) contribute to the binding ofE2020 to AChE. Asp74 and Trp86 are present ... present in bothAChE and BChE, and the mutation of Trp86 (Trp82 inBChE) to a nonaromatic residue has a dramatic effect onthe binding of E2020 to AChE and BChE. This is due to theelimination ... structure regarding the role of Phe330 in thebinding and selectivity of inhibitors to AChE, is notunique to E2020 and was noted for huperzine A and tacrine also [34]. These studies suggest that...

Báo cáo khoa học: "Mine the Easy, Classify the Hard: A Semi-Supervised Approach to Automatic Sentiment Classiﬁcation" pot

... support vectors to acquire the hyperplane, and since an unambiguousseed is likely to be far away from the hyperplane,it is less likely to be a support vector.Role of ensemble learning To get a ... resulting eigenvectors, we partition thelength-normalized reviews into two sets.As Ng et al. point out, “different authors stilldisagree on which eigenvectors to use, and how to derive clusters ... DVD are relatively tougher to identify. Another reason can be attributed to the failure of the chosen eigenvector to capture thesentiment dimension. Recall that each eigenvectorcaptures an important...

Báo cáo khoa học: "A Case Analysis Method Cooperating with ATNG and Its Application to Machine Translation" pot

... Display (from EngLish to Japanese) 158 A Case Analysis Method Cooperating with ATNG and Its Application to Machine Translation Hitoshi IIDA, Kentaro OGURA and Hirosato NOMURA Musashino ... is a register to control English analysis and the other is a buffer to hold some mentioned-above constituents. The first type has two slots ; one is similar to a blackboard and registers the ... translation system LUTE (Language Understander, Translator & Editor) which can translate English into Japanese and vice versa. LUTE-EJ is the English -to- Japanece version of LUTE. In case analysis,...

Báo cáo khoa học nông nghiệp " CLOSER LINKS BETWEEN RESEARCH, PRODUCTION AND MARKET TO ASSURANCE OF SAFETY AND HIGH QUALITY VEGETABLES FOR CONSUMERS " potx

... little attempt to control ethylene emissions around harvested products, which are well known to reduce the quality and storage life of fruits and vegetables. The current handling and marketing ... for farmers and marketers to improve post harvest handling • Some new infrastructure, e.g. access to cool rooms and better containers for produce • Training on current post harvest handling techniques ... Thach, N. X. (1999). Effect of land environment, water and fertilizers to safe vegetable production and adaptation of agricultural land inplanned vegetable production areas in Hanoi province....

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